Fountain-pen



(No Maciel.)

Patented Deo. 19, 1893.

WlTNESSES Y v[NVENTOFI 7661,@1@ dem@ C l @x7/M 7mm UNITED STATES PATENTOFFICE@ FREDERICK GILBERT, F SEYMOUR, CONNECTICUT.

FOU NTAlN-PEN.

SPECIFICATION forming part of Letters Patent No. 511,134` dated December19,1893. Application filed April 20, 1893. Serial No, 471,180. (llomodel.)

to art to which it appertains to make and use the same.

My invention has for its object to simplify and improve the constructionof fountain pens so that they shall be durable, always ready to operateeven after non-use for along time,

always safe so that there shall be no danger of ink escaping in use, inwhich the flow of ink under ordinary circumstances shall be perfectlyfree and unobstructed, and in which 2o the cost of construction shall bereduced to the minimum, all superfluous parts and expensive details ofconstruction being avoided so that pens embodying my novel invention maybe produced at a price sufficiently low to place them within the reachof all; these being essential requirements in a perfect fountain pen andhaving never been found combined in any pen so far as I am aware.

With these ends in viewI have devised the 3o simple and novelconstruction which l will now describe referring by numbers to theaccompanying drawings forming part of this specification, in which-Figure l is alongitudinal section of a foliutain pen illustrating mynovel invention;

Fig. 2 a section on an enlarged scale on the line te a: in Fig. 1looking toward the right; Fig. 3 a section on an enlarged scale on theline y y in Fig. l looking toward the left, and

.lo Fig. e is a perspective of my novel stop disk or plate detached.

l denotes the barrel or ink reservoir, 2 the nozzle the inner end ofwhich is externally screw threaded to engage a corresponding thread onthe inner side of the barrel and is provided with a flange 3 againstvwhich the end of the barrel abuis when the parts are secured together.

4 denotes the usual cap which when the 5o pen is in use may be slippedover the base of the barrel which is reduced to receive it.

When the pen is not in use the cap is adapted to slip over the nozzle toprevent the possibility of ink escaping no matter in what position itmay be placed or how long it may remain out of use.

5 denotes a'gold pen of any suitable or preferred style which (itsclosely in the outer end of the nozzle.

6 denotes the feed bar which may be made of any suitable materialpreferably of hard rubber, and the exact shape or size of which is notof the essence of my invention, it being furthermore contemplated thatthe feed bar may be placed either under or over the pen so as to deliverink on either the under side or upper side thereof as may be preferred.

7 denotes a disk or plate which is provided with a notch 8 to receivethe feed bar and with a number of line perforations 9. This disk is madevery thin and light and may be made of any suitable non-corrosivematerial as for example hard rubber, vulcanized fiber or a non-corrosivemetal. The disk acts to retain the ink in the barrel or reservoir sothat it cannot escape in use but at the same time the perforations willallow sufficient air to enter the reservoir to permit the ink to iiowalong the feed bar to the pen without danger of blotting. The exactlocation of this disk in use is not of the essence of my inventionalthough I preferably place it at the base of the pen as shown in thedrawings.

I have illustrated the parts in position to produce a top feed but itwill of course be .apparent that the principle of operation of an underfeed is precisely the same, the notch in the disk receiving the feed barno matter what may be the relative position of the feed bar and the pen.

Having thus described my invention, I claim- The combination with thenozzle and a feed bar, of a stop disk fitting within the nozzle andhaving a notch to receive the feed bar, and fine perforatons whichpermit air to pass into the reservoir, but prevent the escape of ink.

In testimony whereof I ax my signature in presence of two witnesses.

FREDERICK GILBERT.

Witnesses:

WILEUR W. Smm, JENNIE W. SMITH.

